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Finding the Fourth Proportional to 219,416.40, 329,124.56 and 53,204.40

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Solution

The fourth proportional to 219,416.40, 329,124.56 and 53,204.40 is: 79,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,416.40 : 329,124.56 = 53,204.40 : x
  2. Step 2: Convert to fraction form
    219,416.40/329,124.56 = 53,204.40/x
  3. Step 3: Cross multiply
    219,416.40x = 329,124.56 × 53,204.40
  4. Step 4: Simplify right side
    219,416.40x = 17,510,874,740.06
  5. Step 5: Solve for x
    x = 17,510,874,740.06/219,416.40
  6. Step 6: Final answer
    x = 79,806.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.